Home / 1,272,856.20-1,756,104.48-789,247.32

Finding the Fourth Proportional to 1,272,856.20, 1,756,104.48 and 789,247.32

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Solution

The fourth proportional to 1,272,856.20, 1,756,104.48 and 789,247.32 is: 1,088,890.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,856.20 : 1,756,104.48 = 789,247.32 : x
  2. Step 2: Convert to fraction form
    1,272,856.20/1,756,104.48 = 789,247.32/x
  3. Step 3: Cross multiply
    1,272,856.20x = 1,756,104.48 × 789,247.32
  4. Step 4: Simplify right side
    1,272,856.20x = 1,386,000,754,479.99
  5. Step 5: Solve for x
    x = 1,386,000,754,479.99/1,272,856.20
  6. Step 6: Final answer
    x = 1,088,890.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.